http://www.ncix.com/products/?sku=64819
http://www.ncix.com/search/?categoryid=0&q=linksys+4200
http://www.ncix.com/products/?sku=63845
Here are links to some of the routers in my round up here. Basically I take a tablet PC and do signal checks at various points in my house and on my property, then I compare the readings for you guys at the end.
Sorry the video is so long!